Classification systems existing in ı'diopathic scoliosis either, try to explain structural deformity by means of dif-ferent anatomy or they merge from the needs of treatment such as in defining and selection of fusion levels. Al-though, idiopathic scoliosis is a three dimensional deformity, at present there is no classification that addresses scoliosis in three dimentions.
İn this articie we reviewed existing classifications in choronological order.
Keywords: İdiopathic scoliosis, classification, sagittal profile.